oregonconventioncafe.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:b2:56:5a:d3:23:df:6d:c5:46:15:b9:89:3e:36:d5:0d:91 was issued on by Let's Encrypt.

This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.


We have idenified some issues with this certificate:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=oregonconventioncafe.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:b2:56:5a:d3:23:df:6d:c5:46:15:b9:89:3e:36:d5:0d:91
Serial Number (int): 322021904303993117256113917639581760818577
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 2a:51:89:fc:37:5b:50:9d:9b:40:01:bc:40:5e:f1:1f:96:43:af:60
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): f6:82:7a:31:ed:d3:21:4a:cb:10:ef:5d:27:e6:4d:fd:50:a0:83:e0
Fingerprint (sha256): 3f:b7:0e:c7:ce:bf:75:fe:43:28:b1:7b:b8:53:f8:2b:d2:27:37:d4:9e:0f:53:38:5f:b9:09:0b:9a:7d:ed:74

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate oregonconventioncafe.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for oregonconventioncafe.com

Public Key Algorithm

RSA

Key Size

4096

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

oregonconventioncafe.com

Other certificates including the domain name oregonconventioncafe.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for oregonconventioncafe.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----END PUBLIC KEY-----

ASN.1 decoded

 [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2
 . . . . . . . . [c:0|t:2|false] INTEGER 322021904303993117256113917639581760818577
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-09-21 04:47:11 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-20 04:47:11 +0000 UTC
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'oregonconventioncafe.com'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption)
 . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 668298489522707170710761928473075270284813632573986861100502807196460509043990231808354078883310989259204545683063918704589210877288976445499429602332802934297179638981465662694231797667974861318522850467833203451041609604654310940594126101720634876988702580474676604740677593127464808212652733743379376471059445682144327508593980614333187122444843928021315879932053384830677996233676109772311720794173191433039687914780677308798444601659457968593948877142722017626788442740444370534702678463831462659391931765406380365074426787578307787524888539643222094628814955110519293998380437972474246727140953249326853232631252916333862974506707147648383275380211355805554706944167008124167741931653759564771891145129592715771685006736420174015025036963591673809729979196942141797757769313818649972542955451981703803800990246177371132200080039297715857999909330118251069650356895652194791291181256261421924094781756408389203840031106812717766984323445791934988231111237673226624661290264315287902086810758808522878396976178358936121567662304307833812794349108602946080393868093618241910834169415970124061666210570611251515876288158922249559038151307514774220125485534951662042134036891584647908829568353229520343421583579470516043545060028063
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537

 . . . . . . . . [c:2|t:3|true] ORAddress 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits)
							05a0
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							2a5189fc375b509d9b4001bc405ef11f9643af60
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (99 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.int-x3.letsencrypt.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://cert.int-x3.letsencrypt.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'oregonconventioncafe.com'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (69 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee007500e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016d525c1e4900000403004630440220338eb75e87c6108180d2eb86159fe2b690c072a58f1c0821d48e96d13843e46902206f74ba7c6b720d306143cd3f248439d4707211d2378d674dc0f5335c164d8fdc007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016d525c1e3700000403004630440220198293675a761829eee2261a4668b1d9aaeb430bef4371deb5e1e9083ff20abe02203a1aad2615ab60f001b009677836bc0a34cadb52cad6def3ac979230d66f872d
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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